Losi LST XXL User Manual - Manual (Page 5)

Page 5
About Glow Plugs
The glow plug is like the ignition system in your automobile. The coiled element in the center of the plug glows
red hot when connected to a 1.5-volt battery (located in the igniter). This is what ignites the
fuel/air mixture when compressed in the cylinder. After the engine fires, the heat generated
by the burning fuel keeps the element hot. Common reasons for the engine not starting are
the 1.5-volt battery being weak, the glow plug being wet with fuel, or the element burned out.
Use a spare glow plug to check the igniter. If the igniter makes the element glow, remove the
plug from the engine to check it in the same manner. A wet glow plug means there is excess
fuel in the engine. To eliminate this, put a rag over the head and turn the engine over a few
seconds with your Spin-Start. Reinstall the glow plug, making sure you have the brass gasket
on it. The engine should now start.
Testing the Temperature
Although the DX3S Radio offers temperature readout, the following is a handy backup method. The ideal
operating temperature for the engine will vary with the air temperature but in general it should be in the 190 to
220° F (88 to 105° C)) range. A simple way to check the engine temperature is to put a few drops of water on the
top of the head/heat sink. It should take 3−5 seconds for the water to evaporate. If it boils away quickly the engine
is overheating and the high-speed needle needs to be richened (turned counterclockwise) at least “two hours.”
About the Radio
The Spektrum DX3S radio installed in the LST XXL is a professional level system with more than the usual features
you may find useful. Be sure to read through the included radio manual for complete instructions. The following is
a simple guide refering to items that are commonly used and/or needed to run your model.
1. Power Switch - Turns your transmitter ON and OFF
2. Steering Wheel - Controls the steering of your model
3. Steering Trim Tab - Allows you to fine-tune the neutral position
of the steering
4. Throttle Trigger - Pull back for throttle and push forward for
brakes
5. Throttle Trim Tab - Allows you to set the idle/brake of the
model
6. Transmitter Display - Digital readout shows battery voltage,
temperature, RPM/Speed and functions/settings
7. Transmitter Antenna - Transmits signal to the receiver in the
model
8. AUX - Lever for forward/reverse
Radio Operation
It is important that you familiarize yourself with the radio system, as
this is your direct link to the model.
• Never run your model with low receiver or transmitter batteries.
• Always fold the antenna to the upright position before running
your model.
• Never leave the power on or the batteries will not last long.
• Always turn the transmitter ON before turning the model ON.
• When finished running, always turn the model OFF before the transmitter.
• For best operation, it will be necessary to keep the “trims” adjusted for both the steering and throttle as noted
on the following pages.
1
2
3 5
4 8
6
7
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